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Topographic zonation of infiltration in the hilly loess region, north china
Author(s) -
Li Gang,
Luk Shiu Hung,
Cai Qiang Guo
Publication year - 1995
Publication title -
hydrological processes
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.222
H-Index - 161
eISSN - 1099-1085
pISSN - 0885-6087
DOI - 10.1002/hyp.3360090208
Subject(s) - ponding , infiltration (hvac) , loess , geology , hydrology (agriculture) , soil science , physical geography , geomorphology , drainage , geotechnical engineering , geography , ecology , meteorology , biology
Field infiltration tests using portable rainfall infiltrometers were conducted in the Wangjiagou experimental basin in the hilly loess region of north China. Based on data collected at 27 sites, a topographic zonation of infiltration characteristics was observed. The average steady infiltration rate and the average ponding time decreased from the hilltop to the hillslope and further decreased to the gully wall. Such a zonation is closely related to the variations of topography, soil and land use conditions in the study area. A general infiltration model is proposed. Collected field data are used to establish the applicability of the proposed model in the study area.